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WorksheetsGenetics Practice
Total questions: 20
Worksheet time: 16mins
Allele
Set of two letters inherited from mom & dad
A version of a gene; one letter
The physical trait an organism has
A mutation
Genotype
A set of two letters (genes) inherited from mom and dad
A version of a gene; one letter
The physical trait an organism has
Aa
Homozygous Genotype
Two letters of the same size
The physical trait an organism has
Two letters; one big and one small
Bb
Phenotype
Set of two letters of the same size
The physical trait an organism has
Tall
Aa
Heterozygous Genotype
BB
Set of two letters of the same size
Set of two letters; one big and one small
Aa
In the Punnett square, what is the probability for white fur?
(Click the picture to see it without the text)
If B= Brown and b= white, which of the following genotypes will produce brown fur?
BB
Bb
bb
BBB
If T= Tall and t= short, which of the following genotypes would produce a short plant?
BB
TT
Tt
tt
How many alleles does a person carry for a trait?
1
2
3
4
In a pedigree, which shape represents a male?
circle
square
On a pedigree, this symbol represents a ---
not affected female.
not affected male.
affected male.
affected female.
On a pedigree, this symbol represents a ----
not affected male.
not affected female.
affected male.
affected female.
How many individuals are there in the 3rd generation?
1
2
4
6
